JD
John Donnelly — 1930 US Census Record
Model Tree available1930 United States Federal Census · Bronx, New York
Our Model Tree links this John Donnelly across the 1910, 1920 and 1930 US Censuses in Bronx, New York (XGBoost, ~Confirmed), with identified parents Anthony & Elizabeth — first a son (b.~1899), then head of a 4-person household.
Age 31
b. ~1899
Male
Son
Born: New York
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Bronx, New York |
| Surname | Donnelly |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Pat. |
| Industry | N.Y. Fire Dept. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Pat. |
| Township / Ward | New York |
| Est. Birth Year | ~1899 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Donnelly | Head | — | 55 | ~1875 |
| Frank Cotting | Other | — | 37 | ~1893 |
| George Cotting | Other | — | 34 | ~1896 |
| John Donnelly | Son | — | 31 | ~1899 |
Census Appearances
1910
New York, …
Son, age 10
New York, New York · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
New York, …
Son, age 21
New York, New York · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Driver |
| Industry | Express Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Son, age 31
Bronx, New York · implied b. ~1899 — 4 household members
| Surname | Donnelly |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Pat. |
| Industry | N.Y. Fire Dept. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Donnelly across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: father Anthony Donnelly (~0.92 confidence) and mother Elizabeth Donnelly (~0.92 confidence) and father James Donnelly (~0.92 confidence) and mother Margaret Donnelly (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Anthony Donnelly
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Donnelly
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
James Donnelly
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Margaret Donnelly
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Donnelly
Son · 1930 · age 31 · b. ~1899 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Bronx, New York
Open full size
1930 US Federal Census — Bronx, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1467:0314)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ida Lapping | 18 | Daughter | Cashier | Russia |
| 52 | Lena Lapping | 13 | Daughter | — | Georgia |
| 53 | Morris Lapping | 9 | Son | — | Georgia |
| 54 | Minnie Lapping | 7 | Daughter | — | Georgia |
| 55 | Willie Lapping | 1 | Son | — | Georgia |
| 56 | Sam Goldstein | 19 | Nephew | Clerk | Georgia |
| 57 | Nicholas Wissmath | 68 | Head | — | New York |
| 58 | Dorothea Wissmath | 66 | Wife | — | New York |
| 59 | Ida Wissmath | 40 | Daughter | Accountant | New York |
| 60 | Florence Wissmath | 27 | Daughter | Comparison | New York |
| 61 | Dorothy Wissmath | 20 | Daughter | — | New York |
| 62 | Moses Sohn | 55 | Head | — | Russia |
| 63 | Sarah Sohn | 55 | Wife | — | Russia |
| 64 | Mae Sohn | 25 | Daughter | Milliner | Russia |
| 65 | Esther Sohn | 23 | Daughter | Fore-Lady | Russia |
| 66 | Celia Sohn | 19 | Daughter | Fore-Lady | Russia |
| 67 | Israel Sohn | 16 | Son | — | Russia |
| 68 | Margaret Donnelly | 55 | Head | — | New York |
| 69 | John Donnelly THIS PERSON | 31 | Son | Pat. | New York |
| 70 | Frank J. Cotting | 37 | Son-in-law | Cashier | New York |
| 71 | George Cotting | 34 | Son-in-law | Electrician | New York |
| 72 | Meyer Siegal | 50 | Head | Jeweler | Russia |
| 73 | Clara Siegal | 40 | Wife | — | Russia |
| 74 | Anna Siegal | 14 | Daughter | — | New York |
| 75 | Sylvia Siegal | 12 | Daughter | — | New York |
| 76 | Meyer Carman | 45 | Cousin | Broker | Russia |
| 77 | Anna Boax | 50 | Head | — | Scotland |
| 78 | Anna L. Boax | 70 | Daughter | — | Scotland |
| 79 | Elisabeth Boax | 30 | Sister | Clerical | New York |
| 80 | Fanny Sclafiro | 47 | Head | — | Russia |
| 81 | Willie Sclafiro | 47 | Father | Tinsmith | Russia |
| 82 | Louis Sclafiro | 28 | Son | Plumber | Russia |
| 83 | Gertrude Sclafiro | 22 | Daughter | Teacher | New York |
| 84 | Sonia Sclafiro | 20 | Daughter | — | New York |
| 85 | Samuel Sclafiro | 17 | Son | — | New York |
| 86 | Morris Sclafiro | 14 | Son | — | New York |
| 87 | Herbert Sclafiro | 8 | Son | — | New York |
| 88 | Lillian Prescott | 48 | Head | Seamstress | Brit. West Indies |
| 89 | Samuel Prescott | 50 | Husband | Janitor | Brit. West Indies |
| 90 | Jack Katz | 37 | Head | Supt. | Russia |
| 91 | Bella Katz | 34 | Wife | — | Russia |
| 92 | Esther Katz | 8 | Daughter | — | New York |
| 93 | Philip Katz | 5 | Son | — | New York |
| 94 | Leon Katz | 4 | Son | — | New York |
| 95 | Fred Katz | 2 | Son | — | New York |
| 96 | Lena Rudnick | 33 | Head | — | Russia |
| 97 | Louis Rudnick | 42 | Husband | Tailor | Russia |
| 98 | David Rudnick | 15 | Son | — | New York |
| 99 | Murray Rudnick | 13 | Son | — | New York |
| 100 | Elsie Rudnick | 9 | Daughter | — | New York |
Pedigree Summary
John
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)